74 



Part II. This part deals with the " notes on the fossils " in ques- 

 tion in which Prof. Penhallow reviews the literature of the subject in 

 a clear and lucid manner, giving a full description of {a) the " exter- 

 nal characters " of Nematophyton Logani, Dn. and (b), its " internal 

 structure," which is the result of the examination of a large series 

 of microscopic slides of sections taken in every direction imagin- 

 able. Longitudinal sections show that the principal part of the struc- 

 ture is composed of tubular cells of indeterminate length. Cross 

 sections, on the other hand, reveal a series of large rounded cells with 

 " intercellular areas," which ai-e more or less occupied by a system of 

 much smaller^ rather thin-walled filamentous cells. More minute de- 

 tails of the structure and arrangements of parts are given, which alto- 

 gether furnish means of recognizing the general relations and characters 

 of the genus which Sir Wm. Dawson proposes. In this genus Nema- 

 tophyton three species are included : Nematophyton Logani, (Dawson); 

 Nematophyton laxum, (Penhallow); Nematophyton Ricksi, (Etheridge). 

 Plates I and II of this volume of the Transactions of the Royal 

 Society of Canada contain eight figures giving the microscopic characters 

 of the species which are reproduced by photo-lithograhy. 



Note, — At the last meeting of the Royal Society, of Canada, May, 

 1889, Prof. Penhallow read a paper entitled " Notes on Erian Plants," in 

 which he ofi"ers additional notes upon N. Logani and also revises the 

 descriptions of Nematoxylon crassum and Celluloxylon primcevum. 

 The former he shows to be a species of Nematophyton for which he 

 retains the specific name of crassum. The latter is also shown to be 

 a highly altered form of Nematophyton, and he refers it to N. crassum. 

 A complete revision of the genus is also given. 



H. M. A. 



On some Remarkable Organisms of the Silurian and Devonian 

 Rocks in Southern New Brunswick. By G. F. Matthew, M.A. 



In Vol. VI of the Trans. Roy. Soc. Can., p. 49, et seq., Mr. 

 Matthew figures (plate lY) and describes six very remarkable organisms 

 from the fossiliferous strata of southern New Brunswick, which make 

 an interesting addition to our knowledge of the Silurian and Devonian 

 fossils of that Province. The paper opens with a revised and extended 



